Massaging device



G. A. BELKNAP MASSAGING DEVICE 7 Nov. 23, 1937.

Filed May 21, 1936 n mvw ATTORNEt-S Patented Nov. 23, 1937 PATENT OFFICEMASSAGING DEVICE Gardner A. Belknap, Conneautville, Pa.

Application May 21, 1936, Serial No. 81,116

2 Claims.

Thisinvention relates to massaging devices and has for an object toprovide a device of this character which will be extremely efllcient insubjecting the parts under treatment to the action of an electriccurrent.

A further object is to provide a device of this character which willinclude a battery or coil casing of the general shape of a flashlightcasing, the same having on one side thereof the massaging tool wherebythe device will be portable and may be easily manipulated duringtreatment of the parts to be massaged.

A further object is to provide a device of this character having amassaging tool comprising an elongated casing which is providedcentrally of its upper side with a projection, the projection graduallyincreasing in length from its upper to its lower end and having slightlyconvex upper end and front and rear edges whereby to adapt it to affectthe massaging of the prostate gland through the vibration of theadjacent parts with which the projection contacts while the device is inuse.

A further object is to provide the projection, in a device of thischaracter, with an electrode, which may be applied direct to the partsunder treatment for stimulating the tissues by action of the electriccurrent.

With the above and other objects in view the invention consists ofcertain novel details of construction and combinations of partshereinafter fully described and claimed it being understood that variousmodifications may be resorted to within the scope of the appended claimsWithout departing from the spirit or sacrificing any of the advantagesof the invention.

In the accompanying drawings forming part of this specification,

Figure 1 is a longitudinal sectional view through a massaging deviceconstructed in accordance with the invention.

Figure 2 is a cross sectional view taken on the line 2-2 of Figure 1.

Figure 3 is a detail longitudinal sectional view taken on the line 3-3of Figure 1, with parts in elevation.

Figure e is a diagrammatic View of the electrical connections of theapparatus.

Figure 5 is an end elevation of the induction coil looking toward thevibrator.

Referring now to the drawings in which like characters of referencedesignate similar parts in the various views, I!) designates a tubularcasing formed of insualting material and adapted to house a pair ofbatteries I l of the flashlight type,

and an induction coil l2 having a vibrator [3 adapted to make and breakthe primary circuit [4 of the coil to induce a high frequencyoscillating current in the secondary l5 of the coil. A condenser I6 isconnected across the armature ll 5 and the adjusting screw l8 of thevibrator to eliminate sparking.

The casing II] is provided on one side with a massaging'tool which isintegral with the casing and comprises an elongated base I9 which is ofhollow formation and which gradually increases in length from its upperto its lower end and has a slightly convex upper end and slightly convexfront and rear edges 2! as shown in Figures 1 and 2. This specific shapeof the tool adapts it most effectively to massage the prostate glandthrough the vibration of the adjacent parts with which the tool contactswhile the device is in use.

The tool or projection I9 is provided at its upper end with an electrode22 which is in the nature of a pin 23 having a rivet head 24 forming acontinuation of the upper end of the projection. The electrode isconnected to one end of the secondary winding of the induction coil l2by means of a wire 25 as best shown in Figure 4. A wire 26 connects theother end of the secondary winding of the induction coil to a switchdesignated in general by the numeral 21.

The switch 2'! comprises a handle 28 having a longitudinal bore toreceive the wire 26 which latter terminates in a resilient switchcontact 29 that is movable toward and away from an electrode 30 by meansof a push button 3|. The electrode is provided with a rivet head 32which in use is placed upon the patient contiguous to the electrode 22of the tool [9 so that a circuit will be closed through the body of thepatient between both electrodes for stimulating activity of the tissues.For controlling the battery circuit a switch is provided including athreaded cap 33 formed of insulating material for closing one end of thecasing I0, as shown in Figure 1. The cap is provided with a spring metaltongue 34 which terminally engages one pole of the terminal battery celland is provided with a fiat portion 35 which has wiping contact with ametal ring 36 mounted in the bore of the casing 10. The ring isconnected by a wire 31 to one terminal of the primary winding of theinduction coil. A wire 38 connects the companion battery cell with theother terminal of the primary winding. When the cap 33 is screwed uptight the spring tongue 34 holds the battery assembled and closes theprimary circuit through the induction coil. When the cap is unscrewedthe spring tongue 34 is disengaged from the terminal battery cell andbreaks the primary circuit at this point.

In operation, when the cap 33 is screwed up tight into the casing II]the primary circuit to the induction coil will be closed in the springtongue switch contact 34 whereupon the coil will operate in the wellknown manner to generate an alternating high frequency current in thesecondary winding. The tool I9 may be placed in contact with the part tobe treated and the switch handle 28 may be moved to locate the electrode32 there of against the body of the patient in close proximity to theelectrode. The push button 3| may now be closed to close the secondarycircuit of the induction coil, the high frequency alternating currentpassing through the tissues of the patient between the electrodes 24 and32, and stimulating these tissues.

From the above description it is thought that the construction andoperation of the invention will be fully understood without furtherexplanation.

What is claimed is:

1. A massaging device comprising an elongated casing, means in thecasing for supplying an oscillating current, a hollow projectioninterrupter therefor in the casing, a battery cell in the casing forenergizing the coil, a projection of insulating material on one side ofthe casing graduallyincreasing in length from its upper to its lower endand having slightly convex upper end and front and rear edges, anelectrode carried .by the projection and exposed exteriorly at the topof the projection, a wire connecting the electrode with one end of thesecondary winding of the coil, a second electrode, a handle for thesecond electrode, and a wire connecting the second electrode with theother terminal of the secondary winding of the coil.

GARDNER A. BELKNAP.

